Heating-furnace



(No Model.) 2 Sheets-Sheet 1.

DE WITT 0. HOWARD & W. H. BURDEN,

HEATING FURNACE.

No. 374,965. Patented Dec. 20, 1887.

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(No Model.)

HEATING FURNACE.

No. 374,965. Patented Bed. 20. 1887. 9 a

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DE \VITT C. HOVARD AND WILLIAM H. BURDEN, OF CLEVELAND, OHIO.

HEATING-FURNACE.

SPECIFICATION forming part of Letters Patent No. 374,965, dated December20, 1887.

Application filed November 23, 1886.

To all whom it may concern.-

Be it known that we, DE WITT G. HOWARD and WILLIAM H. BURDEN, citizensof the United States, residing at Cleveland, in the county of Guyahogaand State of Ohio, have invented certain new and useful Improvements inHeating-Furnaces; and we do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same.

Our invention relates to heating-furnaces of the variety in which oil isburned to produce the heat; and the object of the invention is moreespecially to provide a furnace or stove that is adapted for heatingstreetcars, although it may also be used in private residences oroffices, or wherever artificial heating is required.

The invention consists, broadly, of an oilreservoir provided withburners having suitable chimneys, a flanged base in which the cured tothe base and perforated above and below for the ingress and egress ofair, all as shown and described, and particularly pointed out in theclaims.

Referring to the accompanying drawings, Figure l is a transverse sectionof a street-car, showing our improved furnace located centrally in theaisle. Fig. 2 is a vertical longitudinal section of the furnace. Fig. 3is a Vertical crosssection thereof. Fig. 4c is an end elevation. Fig. 5is a side elevation. Fig. 6 is a perspective of the reservoir with apart of the cover broken away to reveal the interior and the chimneys inposition. Fig. 7 is aperspective of the flanged base. Fig. Sis a crosssection of the furnace and base as united with the chimneys broken off.i

In the drawings, A represents the furnace as an entirety, consisting indetail of the reservoir B, chimneys 0, base D, and body part or dome E.llhe shape of the furnace isnot considered material to the invention andany preferred shape or form may be adopted; but the form shown, which iselliptical in horizontal section, as seen in the perspective view of thebase, Fig. 7, is preferable when the furnace is used to heatstreet-cars, as thereby we are enabled to place the furnace in thecenter of the aisle and leave ample space at either Serial No. 219,551.(No model.)

side for the free passage of passengers. The reservoir 13 is shaped tocorrespond to the style of the furnace as here shown, and is shallow andflat, so as to occupy as little vertical space as possible and toprevent the undue agitation of the oil resulting from the movements ofthe car. As a measure of further precaution in this direction, ribs 1)are placed transversely on the inside of the reservoir, and, if deemednecessary, similar ribs may be run also in the other direction.

I) I) represent two Argand burners, selected for their heat-producingqualities, secured in the top of the reservoir and operating in themanner of burners in common use.

It of course is desirable to employ burners possessing the greatest heatproducing capacity; but apart from this consideration one burner willserve as well as another.

- b is a guard plate or shield over the'top of the reservoir and raisedslightly above it, so as to leave an air-space between them and protectthe reservoir from the heat of the burners.

G C are sheet-metal chimneys braced near their top by conical deflectors0, attached to the walls of the dome. As the entire structure hereindescribed is placed bodily in the car or room and the products ofcombustion are discharged immediately into the room with no otherescape, it is of the highest importance that the chimneys should be soconstructed as to insure perfect combustion under all circumstances.

If the furnace be placed where it remains stationary and is not moved orshaken, the common lamp-chimney will suffice; but if it be used in a carwhere there is constant vibration and jarring the common chimney willnot do at all, as the intermittent movements of the car will cause thefurnace to smoke, produce imperfect combustion, and flll the carwithdisagreeable odors.

c is a mica window in the side of the chimney to enable one to properlyadjust the wick.

D is the base or pan of the furnace, having a vertical flange or rim,cl, about its sides and a series of cross-bars, (1, across its bottom.The flange is perforated at intervals, as at (i to admit air about thesides of the reservoir, and the cross-bars d are designed to lift thereservoir slightly above the base, so as to permit of air-circulationbetween them. To establish these conditions it is only necessary to makethe reservoir slightly smaller than the base about the sides, which willform an airspace at that point and allow the air to flow in about andover the reservoir. Any equivalent of the cross-bars-such as ribs orstuds on either the reservoir or the basewhich will separate the partsand produce a chamber between them will serve the purpose, and anysuitable means may be employed to center and secure the reservoir in thebase. Small brackets b are shown for fastening the base to the floor;but these may be substituted by screws through the bottom of the base orby other temporary fastenings.

E is the body or dome of the furnace, preferably secured to the base bya stovcpipe joint and catches e at the ends. Air is supplied to the bodyfor the purposes of combustion through the openings d in the base andopenings 0, covered by wire-gauze, at either side of the body.

6 are hand-holes for turning the wick-wheels, and are covered with micaplates sliding in guides-at the sides. Longitudinally through the centerof. the top of the body or dome we place a pipe or tube, 6 preferablyflattened, as shown, and extending between openings e in the ends of thedome. The chimneys approach this pipe within an inch, or thereabout, andthe pipe has perforations 6 along its bottom to admit the heat whichissues into the car or room from its ends. The pipe is of less widththan the dome, so that the heated air may escape through perforations e,above the plane of the pipe, and 0 below it. The top of the dome isplain and closely covered, and there are no other openings about thesides than those above described. Handles e are provided at the ends tolift the dome on and off.

Having thus described our invention, what we claim, and desire to secureby Letters Patent, is-

1. In a heating-furnace for cars, a base portion-constructed to betemporarily fastened to the floor of the car and provided with anoilreservoir having partitions to prevent the rocking of the oil in thereservoir and with burners and chimneys, in combination with a metaldome oblong in cross-section and having openings about its top for theescape of heat, said dome being secured to the base by suitablefastening mechanism and bodilyremoved there from, substantially as setforth.

2. In combination with a car, a heatingfurnace comprising and combiningthe following elements: a base attached to the floor of the car, apartitioned oil-reservoir within the base provided with burners andchimneys, and a metallic dome set upon the base and secured thereto bytemporary fastenings, said dome being perforated, substantially as shownand described, and inclosing the chimneys and burners and serving todistribute the heat, as set forth.

DE XVITT G. HOWVARD. W'ILLIAM H. BURDEN.

Witnesses:

H. T. FISHER, WM. M. MONROE.

